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University of Patras. The University of Patras ( UPatras; Greek: Πανεπιστήμιο Πατρών, Panepistímio Patrón) is a public university in Patras, Greece. It is the third-largest university in Greece with respect to the size of the student body, the staff, and the number of departments. [1] [2] The University of Patras is ...
It is an icon of chemistry and is widely used in physics and other sciences. It is a depiction of the periodic law, which states that when the elements are arranged in order of their atomic numbers an approximate recurrence of their properties is evident. The table is divided into four roughly rectangular areas called blocks. Elements in the ...
Cheminformatics (also known as chemoinformatics) refers to the use of physical chemistry theory with computer and information science techniques—so called " in silico " techniques—in application to a range of descriptive and prescriptive problems in the field of chemistry, including in its applications to biology and related molecular fields.
Chemistry is the scientific study of the properties and behavior of matter. It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances.
List of chemical classifications. Chemical classification systems attempt to classify elements or compounds according to certain chemical functional or structural properties. Whereas the structural properties are largely intrinsic, functional properties and the derived classifications depend to a certain degree on the type of chemical ...
Systems chemistry is a relatively young sub-discipline of chemistry, where the focus does not lie on the individual chemical components but rather on the overall network of interacting molecules and on their emergent properties. Hence, it combines the classical knowledge of chemistry (structure, reactions and interactions of molecules) together ...
For the Australian radio program, see Radio National. In philosophy, Occam's razor (also spelled Ockham's razor or Ocham's razor; Latin: novacula Occami) is the problem-solving principle that recommends searching for explanations constructed with the smallest possible set of elements. It is also known as the principle of parsimony or the law of ...
Umpolung. In organic chemistry, umpolung ( German: [ˈʔʊmˌpoːlʊŋ]) or polarity inversion is the chemical modification of a functional group with the aim of the reversal of polarity of that group. [1] [2] This modification allows secondary reactions of this functional group that would otherwise not be possible. [3]